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API differences between GNUstep and OS X

From: Jens Alfke
Subject: API differences between GNUstep and OS X
Date: Sun, 26 Feb 2012 16:06:47 -0800

I’ve gotten past my installation problem (thanks everyone!) and now I’m getting 
down to making my code compile. I’m running into a lot of issues where APIs are 
different or missing. Some of these are Linux vs. BSD (e.g. digittoint), some 
are Apple frameworks that aren’t part of GNUstep (e.g. CommonCrypto). Those are 
expected and I’m dealing with them.

But there are also a lot of instances where the GNUstep base framework is out 
of date with respect to Apple’s Foundation. A lot of methods that’ve been 
around since OS X 10.5 seems to be missing; some I’ve run into are
        −[NSFileManager removeItemAtPath:error:]
        +[NSData dataWithContentsOfFile:options:error:]
I don’t expect everything to be identical to Apple’s headers, but I was 
expecting the differences to be in new APIs or obscure classes.

Is there a newer version of the framework available, or is this the state of 
the art and I’ll need to start changing my code or implementing those methods 
myself in categories?


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